It determines what that mineral can be usd for and what machinery is used to process it. Gold for instance is soft and can be molded by steel or or other harder metals.
Relative hardness is the property of minerals that uses the Mohs scale for classification.
in the hood!
Some minerals have varying hardness according to the direction you may scratch
physical property
The most valuable gemstones are the clear, crystalline form of the harder minerals such as diamond, corundum, tourmaline, topaz, and garnet. Other minerals with exceptional clarity or color, and even some rock types are known commercially to be valuable as gemstones, but hardness is a key to frequent wearability.
Because it is :P
Hard minerals can be used as abrasives or coatings on cutting blades. Gemstones of valuable minerals are more durable the harder they are.
Relative hardness is the property of minerals that uses the Mohs scale for classification.
hardness
hardness streak and luster and color
hardness streak and luster and color
Hardness
The hardness
Pure materials, especially minerals, are measured on a hardness scale. There are three basic tests: indentation hardness, scratch hardness and rebound hardness. See Wikipedia
We use Mohs scale of mineral hardness to access the hardness of minerals, which calcite is one example.
That would be its Mohs hardness.
Luster is not a good property for identifying minerals because many minerals look similar. Your best way of knowing which mineral is which is by measuring their hardness.